package day02;

public class VarDemo {
    public static void main(String[] args) {
        int a=200000000;
        int b;
        int c,d,e;
        int f=1,g=2,h=3;
        char i='a',j='c';

        int balance = 1000;
        balance+=100;
        System.out.println(balance);
        System.out.println(i);

        int a1,_$2,$_d;
//        int 23s;//不能数字开头
        int nianling;//不直观，不建议
        int age;
        int score,myScore,myJavaScore;
        System.out.println(5/2);
        System.out.println(2/5);
        System.out.println(5.0/2);

    }
}
